T&T: GPS routes and repeatability was IALA Buoys Region A & B

[Bill Allen]

I don't mean to imply for even one moment that you should not avail yourself 
of all the nav. info you can have. Plus everyone should remember chanels 
change move and sometimes even go away totally. In the course of a year it 
can really do all of these things. The chanel I speak of is only eighty feet 
wide for a boat drawing three and a half feet my hatteras in the same chanel 
is much more restricted. Of course I run these channels at 25 kts so eighty 
feet is a very narrow chanel for the reasons you have pointed out. Even the 
time it takes to update can make travel in a narrow channel very much a 
white knuckle exp. I just took exception to a sweeping statement although I 
do agree with you in almost any other area but my own. It's quite diferent 
running a very tight channel many times a season then when traveling in a 
area you're not totally familar with. In summary for me my gps is priceless, 
when I travel it's but another aid to nnavigation. A twenty ft wide channel 
not properly marked and not going in it often would certainnly make me 
reconsider my options.
----- Original Message ----- 
From: "Dave Cooper" <swansong at gmn-usa.com>
To: <trawlers-and-trawlering at lists.samurai.com>
Sent: Monday, January 07, 2008 11:20 AM
Subject: Re: T&T: GPS routes and repeatability was IALA Buoys Region A & B


> <> Meanwhile I'll stick by my statements re the usage in areas that we 
> have
> recently visited and those from the distant past. Eyeball, ranges, depth
> sounder or don't attempt without local knowledge or a pilot.
>
> BTW 80 ft is 4 times a big as a 20' channel so even the WAAS or 
> differential
> might not get you thru in a 16' beam boat ;-)
>
> As always YMMV.....
>
>
> Dave & Nancy
> Swan Song
> Roughwater 58
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